Here's what I found at BJ's (Philadelphia area) that works with low carb eating:

Ground beef 2.89 per pound
4 lbs Shredded whole milk mozzarella 9.99
2 lbs cheddar block 4.99
Perdue whole chicken .99 per pound
Perdue drumsticks and thighs .99 per pound
Perdue split chicken breasts 1.99 per pound
no name brand boneless skinless breasts 1.99 per pound
Perdue oven stuffer 1.29 per pound
Harvestland drumsticks 1.89
pork loin chops 2.09 per pound
beef eye round 3.99 per pound
beef mock tender steaks 4.29 per pound
Wellesley Farms butter 4 lbs 9.99
Eggland's Best eggs 4.29 for 2dozen
Fairlife Milk 3.27
Atkins bars ($4 off) 15.99 for 16
Atkins Shakes ($4 off) 14.99 for 15
Raos marinara 40 ounces 6.99
Deli ham 5.99 pound
Liverwurst 4.99 pound
London Broil deli roast beef 8.99 per pound
Bubba Burgers 19.99 for a dozen

I forgot to check the price of bacon but I think I generally pay ~4/pound. Unless I noted otherwise, all prices are BJ's regular prices. Perdue is actually on sale right now, but these prices are the regular ones. Chicken and eggs seem to be on sale at BJ's as often as not so I'd rarely pay full price

Also, I know there's a ton of food in this list that is overly processed, but I tried to be honest in the types of low carb foods my family and I eat. My husband's two favorite snacks are sticks of mozzarella wrapped in pepperoni and Atkins bars. As a family, our food is much less processed than it used to be.